[FFmpeg-user] Compressed file is larger than original...

[iburman at compuscience.com]

> You have half the frames, but each frame has a better quality than before.
Now you can increase the crf value even more.

Perfect! With -r 30 and -crf 31 I got a file size of 7.1MB still good enough
for our purpose.

Thanks a lot for your guidance!

-----Original Message-----
From: ffmpeg-user <ffmpeg-user-bounces at ffmpeg.org> On Behalf Of Michael Koch
Sent: Saturday, June 26, 2021 12:02 AM
To: ffmpeg-user at ffmpeg.org
Subject: Re: [FFmpeg-user] Compressed file is larger than original...

Am 25.06.2021 um 22:52 schrieb iburman at compuscience.com:
>> add -r 30 to your command line
> I did that; my new command looks like:
> -i HBR_TT747.mp4 -c:v libx264 -preset slow -crf 27 -r 30 -c:a copy 
> -pix_fmt yuv420p HBR_TT747_Compressed.mp4
>
> And it took it into account, now I have:
> r_frame_rate=30/1
> nb_frames=1849
>
> BUT...the resulting file size is still 11.2MB. Isn't that strange that 
> we have now half of the frames and the file size only moved from 11.5 
> to 11.2 MB?

You have half the frames, but each frame has a better quality than before.
Now you can increase the crf value even more.

Michael

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